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State the 3 different types of plate boundaries, and describe their movement.

Convergent - Where two plates collide together, and the crust is destroyed.2) Divergent - Where two plates move away from each other, and new crust is formed.3) Transform - Where the two plates slide past ea...
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Explain why earthquakes occur in the Himalayas

To answer explanation type questions, think through:Location: between Indian and Eurasian plates Processes: thrust (reverse) faulting, compressive stress , destructive/convergent plate boundary, continent-co...
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Answered by Eszter P. • Geology tutor
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Define the Principle of Original Horizontality

The Principle of Original Horizontality states that all sedimentary layers are originally deposited horizontally.
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Answered by Amy M. • Geology tutor
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How can you tell the environment a sedimentary rock is deposited in?

The first stage in the formation of a sedimentary rock is the deposition of sediment. The size, shape and type of sediment can tell you lots about the depositional environment. In a high energy environment, ...
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Answered by Holly U. • Geology tutor
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Describe the sequence in which minerals crystallise in a cooling magma using Bowen's Reaction Series.

As a melt cools in a magma chamber is begins to crystallise and becomes a composite mass of solids, the crystals, and liquid, the residual melt. Bowen's Reaction Series gives the order of which the most comm...
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Answered by Andrew L. • Geology tutor
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